Trolley-wheel.



PATENTED APR. 2, 1907.

EDWARD P. SHARP, oF BUFFALO, NEWYoRK.

TnoLtEY-wHEELQ Speccaton of Letters Eatenc.

Patented April 2, 1907.

Application ned June ze, 1964. semi No. 214,664.

fr) .fz/ whom it 711,04/ concern:

Be it known the-tl, EQWARD P. SHARP, a. citizen of the United States, residing at Buffalo, in the countiY of Erie tindStateof New York. have invented newv and useful lmprt vements in 'frollejf-lVheels, of which the lolltuiing is a specification.

This invention relates more particularly to sectional or built-up trolley-wheels.

The ol ijeet oi my invention is the Construction ol e light, strong, durable, and inexpensive wheel of this ty e which is free from screws, bolts, and simi ar tastenings which :ire liable to loose.

ln the mconiptinying drmvings, Figure 1l is n. side elevatioinpartly in section, ol a. trolle)Y wheel embodying my in'iprovenients. Fig. 2 is n transverse central sei-tion thereof. 3 is aV fragmentary View of the inner side of the Wheel-rim, showing the lugs for centerthe tread and for preventing displaceinent ol the side plates. Fig. l is n tiensvexse section ol the Wheel, showing n modilied construction thereof. 'Y

Similar letters of reference indicate corresponding ports throughout. the several views.

il .Y indicate the side or flange plates ol the wheel, preferably stamped from suitable sheet metal und each provided with an integral web or central portion, preferably in the forni of a spider B, :is-shown.

C is t trend-ring, of r;1st-ropper or other suitable material, sented in the `groove i'ornied between the llenges ol" the siue plates A. A and adapted to bein' against the condurftor or trolley-Wire. (Not shown in the driiwings.)

The side plates are prmfided nt their inner edges with lugs or lips o., which extend insi'nrdly nei-oss the joint between the plu-tes A and .serve to renter the tread-ring with ruleronre to the axis oll the wheel. The lugs of one side plztte orelerably ahnt against those ol' the other p nte, so as to hohl the plntes againstv eircuxnl'erential displarmnent on cui-h other ifi-both direi-tions. l"or.l.his purpose the lugs of enrh pluto are urrnnged in opposing sets or pairs, and the lugs ol' one pau' nrc properly spared to engage one side ol the rontiguous lugs of thc other plate, while the lugs ol' the opposing pair a re properly spared to engage the opposito- .side of the companion lugs ol the other pluto, as shown in Fig. l. .lillhoug'h the lugsv oli the two side plates aro olllsel when liul plates :tru placed fare lo inve.

us'ishowu in llg', l, yet the plules are exact duplicates and can both be stamped in. the seme dies. l

As shown in Figs. l and 3, the tread-ring C is provided et its inner. edge, on opposite sides of the pairs of lugs @,witli stops or shoulders c, which ibut against said lugs, thereby interlocking the tread-ring Wit'ntlie 'flnngelates A A and preventing circumferentia displacement ol' the ring with reference to the D is the hub of the wheel, preferably Drovided at its ends with outWa-i'dly-extenuing flanges rl and having a hollow central enlargement o, forming' in annular oil-chamber.

E is a. bushing fitted within the hub and adapted to turn on the usual axle, which is not shown in the drawings, The rings or inner portions bot' the spiders B surround the reduced end portions of the hub D and are permanently and rigidly s'ecured. thereto by existing collars or fillets F of any suitable inetnl around the end portions of the hub and. the rings of the spiders, as shown in Eig.- 2. The side plates nre (lished, with their concave sides arranged toward each other, :ind the inner ring portions l) of the spiders boar against the outer lateral edges or shoulders of the indi-enlargement cZ, forming annuler channels or spaces between the inner sides of said rings and the enlargev nient, into which channels the molten metal flows, thereby securelyr embedding the Webs in the mist collars. The collars nre anchored upon the hub by the flanges d, over which lattcr the collars preferably extend, as shown, to foi-ni a noot inish.V ln the construction shown in the drawings the bushing extends slightly beyond the huh et both ends, und the outer laces of the collins l" are llush with the ends ot' the bushing.

By forming the webs or spiders B intcgrel with the side plates n A and connecting the spiders with tbc wheel-hub by the cost eolhirs all parts of the wheel are firmly united, as the natural shrinkage ol` the metal tends to draw the parts closely together. This construction avoids the use of screws, bolts, or. similar l'astcnings liable to h'ecoine loose und inuterialliY reduces .the cost` ol producing the wheel.

ln the modiliod construction shown in Fig. the hul; enlargement l is separate from the hub l and eonstrurtral ol substtintiell seinieiroulnr erossssection. This enlarge- IOO IIO

1ers may be anchored to the lieb by other l my and eollars'cast 'around the hub end the edment sind the spidersB ere united to thelinlo' by cest collars if", similar to those of the firstdescribed construction. L? desired, these col Ineens than the end 'flanges d. (Shown in Fig. 2.) For exemple, in plnoe of these .flanges the hub may be provided near its ends with external grooves or depressions d?, into which the inet-el lowsin Casting the collars upon the hub, thus reliably interlocking these parts, es shown in Fig.

While l have herein shownend desoribed invention es applied to trolley-wheel, the seine is also applicable to verious other sectional or built-up wlieels,sucl1. sheaves end pulleys.

l eleirn es my inventiiiin'h l. -A Asectional wheel, comprising e hub, side plates having Webs or centrslportions, end collsrscest upon the hub end the edjscent portions of seid webs, seid collars end the hub being provided with interlocking L portions which anchor the collars upon .the d hub, substantially es set forth. 2. A sectional wheel comprising e. hub provided et its ends Witli flanges end between its ends vf'ithsllouldeis, side plates having webs or central portions surrounding the liub,

`jacent portions of seid webs end confined between seid shoulders and flanges, substantially es set forth.

3. A sectional wheel comprising e hub provided with end ilenges and e central annuler enlargement, side plates having dished webs surrounding the end portions of the'liub and bearing against the outer lateral edges of seid .edge Witn lugs .and Ieech enlargement, leaving spaces between' the outer sides of the enlargement and tlie'inner 4 .sienes y eeeli of seid pistes being provided eti ts inner which extend across the joint 'between the plates, substentielly es set forth. .6. A sectional Wheelcfom rising e hub, op posingflange-pl'stes securel to tlie linb, and e. treed-ring arranged between the flanges of seid" plates, seid plates eing their inner edges with lugs w across thevkjoint between tielly es set forth..

7 Aseotionsl wheel comprising lieb, and opposing Aflange-'pistes secured to the linb provided at its inner edge with e pair oi lugs which extend across tween the plates, one lug 'of eeenpeir being ncli Vextend the pistes, substanrovided et y the joint bel Y errenged tobeer against one side of the coinpenion lug ofthe 'opposing pletey endtheother lug of thepeir being errsnged to bear against the opposite side of the companion lug of the opposing plate, substantially es set forth.

llVitness my bend' this i904.

EDVVABD Pl SHARP.

Witnesses:

THEO. L. PoPP, EMMA M. GRMIAM.

25th dey of Jene, 

